Karl Daubmann and PLY Architecture's ‘Mrs. Linde’ lamp is now interactive. We have used an Arduino, a PING Ultrasonic Sensor and 20 BlinkMs to make it so that 'she' changes color when you approach her. The lamp is laser cut from biodegradable paper (the same stuff used for William McDonough's 'Cradle To Cradle'). The base and top are laser cut acrylic.